Stapler



FIG. 1 is a right side view of the stapler showing our new design;

FIG. 2 is a left side view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof; and,

FIG. 7 is a perspective view thereof.

The broken lines showing various features in the drawings are for illustrative purposes only and those features form no part of the claimed design. 

We claim the ornamental design for a stapler, as shown and described. 